The effect of selective antihypertensive drugs on the vascular remodeling-associated hypertension: insights from a profilin1 transgenic mouse model
| Autor: | Altaf A. Wani, Zeinb A. Abouelnaga, Mazin A. Alhaj, Hamdy H. Hassanain, Mohammad T. Elnakish, Mohamed D. H. Hassona |
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| Rok vydání: | 2011 |
| Předmět: |
Genetically modified mouse
Male Myosin Light Chains Nitric Oxide Synthase Type III Blotting Western Mice Transgenic Pharmacology Muscle hypertrophy Mice Profilins medicine Animals Amlodipine Mesenteric arteries Antihypertensive Agents rho-Associated Kinases biology business.industry Atenolol Mesenteric Arteries Nitric oxide synthase Vasodilation Disease Models Animal Losartan medicine.anatomical_structure Hypertension biology.protein Endothelium Vascular Cardiology and Cardiovascular Medicine business medicine.drug Myograph |
| Zdroj: | Journal of cardiovascular pharmacology. 57(5) |
| ISSN: | 1533-4023 |
| Popis: | Hypertension represents a major risk factor for cardiovascular diseases. We have developed a novel transgenic mouse model by overexpressing the cDNA of human profilin1 in the blood vessels of transgenic mice, which led to vascular hypertrophy and hypertension. We assessed the effects of losartan, amlodipine, or atenolol on vascular hypertrophy-associated hypertension, by treating the profilin1 transgenic mice for 4 weeks. Our myograph results showed improvement in the contraction response toward phenylephrine and in the relaxation response toward acetylcholine and sodium nitrite in losartan- and amlodipine-treated profilin1 mice. Western blot analyses using mesenteric arteries of losartan- and amlodipine-treated profilin1 mice showed significant decreases in their signaling, respectively, as follows: the expression of α1 integrin (104% and 93%) and β1 integrin (116% and 109%); p-ERK1/2 (149% and 130%) and p-JNK (171% and 137%); the phospho-myosin light chain 20 (117% and 150%); and the ROCKII expression (125% and 180%). Conversely, there were significant increases in the endothelial nitric oxide synthase expression (82% and 80%) and activation (p-endothelial nitric oxide synthase) (78% and 76%). On the other hand, atenolol-treated profilin1 mice showed no significant change in all measured parameters. In conclusion, the profilin1 gene may represent a new therapeutic target in the treatment of vascular hypertrophy-associated hypertension. |
| Databáze: | OpenAIRE |
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